Detectives walk Levi Aron, center, to a police car at the Brooklyn borough of New York's 67th precinct on Thursday, July 14, 2011. Aron is accused of killing eight-year-old Leiby Kletzky, who disappeared while walking home from a Brooklyn day camp. Arontold investigators that he suffocated the child before a massive search led to the discovery of his dismembered remains, according to a law enforcement official.

Photo: David Karp, AP

Detectives walk Levi Aron, center, to a police car at the Brooklyn...

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Crime scene investigators remove what appears to be a computer from the home Levi Aron, who is suspected of abducting and killing an 8-year-old boy, in New York, Thursday, July 14, 2011. Aron is accused of killing eight-year-old Leiby Kletzky , who disappeared while walking home from a Brooklyn day camp. Aron told investigators that he suffocated the child before a massive search led to the discovery of his dismembered remains, according to a law enforcement official.

Photo: Seth Wenig, AP

Crime scene investigators remove what appears to be a computer from...

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Levi Aron, left, is arraigned in Brooklyn criminal court Thursday, July 14, 2011, in New York. Aron, 35, is charged with luring 8-year-old Leiby Kletzky to his home on Monday, and then smothering him and chopping him upwhen he learned that a search was under way for the missing child. Detectives found the boy's feet in Aron's freezer.

Photo: Louis Lanzano, AP

Levi Aron, left, is arraigned in Brooklyn criminal court Thursday,...

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Judge William Miller speaks during the arraignment of Levi Aron standing with his attorneys Pierre Bazile, center and Gerard Marrone, right, in Brooklyn criminal court, Thursday, July 14, 2011, in New York. Aron, 35, ischarged with luring 8-year-old Leiby Kletzky to his home on Monday, and then smothering him and chopping him up when he learned that a search was under way for the missing child. Detectives found the boy's feet in Aron's freezer.

Photo: Louis Lanzano, AP

Judge William Miller speaks during the arraignment of Levi Aron...

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Defense attorney Pierre Bazile speaks on behalf of Levi Aron, left, at his arraignment before Judge William Miller in Brooklyn criminal court, Thursday, July 14, 2011, in New York. Aron, 35, is charged with luring 8-year-old Leiby Kletzky to his home on Monday, and then smothering him and chopping him up when he learned that a search was under way for the missing child. Detectives found the boyÕs feet in Aron's freezer.

This undated photo provided by the New York City Police Department shows eight-year-old Leiby Kletzky who was last seen near 44th Street and 12th Avenue in the Borough Park section of Brooklyn, N.Y. just before 5 p.m. Monday. Remains believed to be those of Kletzky, 8, were found in a refrigerator Wednesday inside the home of a man being questioned by detectives, police said.

A man accused of kidnapping, killing and dismembering an 8-year-old boy who asked him for directions was ordered Thursday to undergo a psychological evaluation after his lawyer told a judge that his client might be mentally ill.

"He has indicated to me that he hears voices and has had some hallucinations," said the attorney, Pierre Bazile.

Levi Aron, 35, pleaded not guilty to charges of murder and kidnapping as prosecutors said he lured Leiby Kletzky to his home Monday after the little boy got lost while walking home from an Orthodox Jewish day camp.

Video cameras captured the fateful encounter between the two on a Brooklyn street, while Leiby's mother waited anxiously just a few blocks away. Detectives later found the boy's severed feet, wrapped in plastic, in the man's freezer, as well as a cutting board and three bloody carving knives.

At his arraignment Thursday, Aron appeared disheveled, confused and pale. He was held without bail, placed on suicide watch and protective custody after his lawyers said they feared he could do harm to himself.

Police and prosecutors said Aron, a clerk at a hardware supply store, has confessed to suffocating the boy with a bath towel, but they continued to work on verifying his horrific and bizarre explanation for the boy's death.

At the Kletzky household, his family also looked for answers, too.

"Why?" asked Shmuel Eckstein, a close family friend, as the boy's parents and four sisters sat and prayed. "We don't have that ... What we know is that through Leiby's death, God is sending us a huge signal - that we're doing something terribly wrong. And we're looking for what it is."

He added that the family was not looking for retribution.

At a news conference, Police Commissioner Raymond Kelly said Aron told investigators that after taking Leiby off the street Monday, he brought the boy to a wedding in a suburb, took the boy to his home overnight and left him there Tuesday while he went to work.

Aron told police he killed Leiby when he got home after being spooked by a massive search for the boy in Borough Park section of Brooklyn, home to one of the world's largest communities of Orthodox Jews outside of Israel.

The boy's father, Nachman, works for a messenger company. His mother, Esti, is a homemaker.